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Structure is life 1

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  • 1. Kites team presentsstructure is life part 1
    materials & structures
  • 2. At first the ancient used stones in his life then bones and made tools to help him to hunt and save his life from animals
    After discovering the fire human used minerals and the human life became more comfortable and he made arrow and spear ….etc
    History of materials
  • 3. now the development of materials become unbelievable there are
    Smart Materials , composite materials… etc
    New materials have unbelievable properties
    Now we will learn about some new materials in our life as it will help us to study structure and its application......
    New point of view of material
  • 4. This materials were named composite as it real made from two or more materials with significantly different physical or chemical properties which remain separate and distinct at the macroscopic or microscopic scale within the finished structure.
    Properties
    In general it is not isotropic so it is dependant on the direction of force
    The relationship between forces/moments and strains/curvatures can be described with Young's Modulus, the shear Modulus and the Poisson's ratio,
    Composite materials
  • 5. Fibers of this materials be in the form
  • 6. Now Composite materials have gained popularity (despite their generally high cost) in high-performance products that need to be lightweight, yet strong enough to take harsh loading conditions such as
    aerospace components (tails, wings, fuselages, propellers)
    boat and Ships
    Composite materials in industry
  • 7. aerospace components (tails, wings, fuselages, propellers)
    boat and Ships
  • 8. Now lets sail with Smart Material
  • 9. it is not magic or Prestidigitation
    It is smart material
  • 10. I. Piezoelectric Materials
    Piezoelectric materials have two unique properties which are interrelated. When a piezoelectric material is deformed, it gives off a small but measurable electrical discharge. Alternately, when an electrical current is passed through a piezoelectric material it experiences a significant increase in size (up to a 4% change in volume)
    So it can be used as a sensor
    Types of smart materials
  • 11. Electricity strain
    Piezoelectric smart material for breathing rate sensor
  • 12. II. Electro-rheostatic and Magneto-rheostatic
    Electro-rheostatic (ER) and magneto-rheostatic (MR) materials are fluids, which can experience a dramatic change in their viscosity. These fluids can change from a thick fluid (similar to motor oil) to nearly a solid substance within the span of a millisecond when exposed to a magnetic or electric field; the effect can be completely reversed just as quickly when the field is removed. MR fluids experience a viscosity change when exposed to a magnetic field, while ER fluids experience similar changes in an electric field. The composition of each type of smart fluid varies widely. The most common form of MR fluid consists of tiny iron particles suspended in oil, while ER fluids can be as simple as milk chocolate or cornstarch and oil.
  • 13. it is not magic or Prestidigitation
    Its Magnetorheological Fluids
  • 14. MRtechnology has moved out of the laboratory and intoviable commercial applications for a diverse spectrum ofproducts. Applications include automotive primary suspensions,truck seat systems, control-by-wire/tactile-feedback devices, control
  • 15. Now we do not know what the tech will lead us to where in the world of materials that help us to design structures in our life
    Lets imagine and let the future answer us
    Future of materials
  • 16. Refhttp://webdocs.cs.ualberta.ca/~database/MEMS/sma_mems/smrt.html http://en.wikipedia.org/wiki/Smart_material http://www.youtube.com
  • 17. Great Thanks to eng.dr/ mohammadtawfiq
    Thanks for attention
    And see you later with
    Structure is life
    Salamo 3aleko